diff --git a/requirements/requirements_test.txt b/requirements/requirements_test.txt
index b6252a0153..4f39f36c34 100644
--- a/requirements/requirements_test.txt
+++ b/requirements/requirements_test.txt
@@ -7,3 +7,4 @@ pytest-cov==5.0.0
 pytest-order==1.3.0
 pytest-rerunfailures==15.0
 pyvista==0.44.1
+vtk==9.3.1